nsAccessibleRelation.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- *//* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Mozilla Foundation. * Portions created by the Initial Developer are Copyright (C) 2007 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Alexander Surkov <surkov.alexander@gmail.com> (original author) * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */#include "nsAccessibleRelation.h"#include "nsIMutableArray.h"#include "nsComponentManagerUtils.h"
nsAccessibleRelation::
nsAccessibleRelation(PRUint32 aType, nsIAccessible *aTarget) :
mType(aType), mTarget(aTarget)
{
}
// nsISupports
NS_IMPL_ISUPPORTS1(nsAccessibleRelation, nsIAccessibleRelation)
// nsIAccessibleRelation
NS_IMETHODIMP
nsAccessibleRelation::GetRelationType(PRUint32 *aType)
{
NS_ENSURE_ARG_POINTER(aType);
*aType = mType;
return NS_OK;
}
NS_IMETHODIMP
nsAccessibleRelation::GetTargetsCount(PRUint32 *aCount)
{
NS_ENSURE_ARG_POINTER(aCount);
*aCount = 1;
return NS_OK;
}
NS_IMETHODIMP
nsAccessibleRelation::GetTarget(PRUint32 aIndex, nsIAccessible **aTarget)
{
NS_ENSURE_ARG_POINTER(aTarget);
if (aIndex != 0)
return NS_ERROR_INVALID_ARG;
NS_IF_ADDREF(*aTarget = mTarget);
return NS_OK;
}
NS_IMETHODIMP
nsAccessibleRelation::GetTargets(nsIArray **aRelations)
{
NS_ENSURE_ARG_POINTER(aRelations);
nsCOMPtr<nsIMutableArray> relations = do_CreateInstance(NS_ARRAY_CONTRACTID);
NS_ENSURE_TRUE(relations, NS_ERROR_OUT_OF_MEMORY);
relations->AppendElement(mTarget, PR_FALSE);
NS_ADDREF(*aRelations = relations);
return NS_OK;
}